:root {
	--totawidth: 100%;
}
html,
body {
	width: var(--totawidth);
	background-color: #f8f8f8;
}
/* 头部通栏 */
header {
	left: 0;
	top: 0;
	z-index: 40;
	padding: 0 20px;
	width: 100%;
	height: 66px;
	border-bottom: 1px solid #fff;
}
/* logo图 */
header .logo {
	display: block;
	width: 138px;
	height: 66px;
}
.bl {
	height: 66px;
	background: url(../imgs/iocn/new-logo-white.png) no-repeat;
}
/* 导航列表 */
.nl {
	width: 290px;
	height: 64px;
	line-height: 64px;
}
.nl li {
	margin: 0 10px;
}
.nl li a {
	color: #fff;
}
.nl li a:hover {
	color: #00bdff;
}
/* 激活样式 */
.nl .active {
	border-bottom: 1px solid #fff;
}
.nl .active a {
	color: #fff;
}
/* 登录按钮 */
header span {
	display: inline-block;
	border-radius: 50px;
	padding: 4px 8px;
	font-size: 12px;
}
.register {
	border: 1px solid #fff;
}
.login {
	vertical-align: 1px;
	background-color: #ed510a;
}
/* 主体背景色 */
main {
	background-color: #f8f8f8;
}
/* banner区 */
#banner {
	width: var(--totawidth);
	height: 362px;
}
/* 粒子效果 */
#bannerBg {
	left: 0;
	top: 0;
	z-index: 2;
	width: 100%;
	height: 362px;
	background-color: rgba(0, 0, 0, 0.8);
}
/* banner标题 */
.bigtitle {
	padding-top: 140px;
	z-index: 9;
	width: 1200px;
	height: 362px;
	text-align: center;
	color: #fff;
}
.bigtitle p {
	color: #fff;
}
/* 内容区 */
#content {
	margin-top: 40px;
	margin-bottom: 40px;
	width: var(--totawidth);
}
/* 左边内容 */
#contLeft {
	width: 1100px;
}
#contLeft h3 {
	margin-bottom: 20px;
}
#contLeft h3 span {
	font-size: 16px;
	color: #9da5b0;
}
.case {
	margin-bottom: 23px;
	display: flex;
	justify-content: space-between;
	width: 100%;
}
.case li {
	box-sizing: border-box;
	padding: 10px;
	width: 354px;
	height: 384px;
	border: 1px solid #efefef;
	transition: all 1s;
}
.case li:hover {
	box-shadow: 20px 20px 20px #666666;
}
.case li img {
	width: 335px;
	height: 144px;
	margin-bottom: 30px;
}
.case li p:nth-child(2) {
	padding-left: 10px;
	font-size: 20px;
	margin-bottom: 10px;
}
.case li p:nth-child(3) {
	margin-bottom: 24px;
	padding-left: 10px;
	font-size: 13px;
	line-height: 20px;
	color: #7d7fa0;
}
.case li a {
	padding-left: 10px;
	color: #2175ef;
}
/* 伙伴区 */
#buddy {
	width: 100%;
	height: 437px;
}
/* 标题 */
#buddy h3 {
	font-size: 18px;
	font-weight: bold;
}
#buddy h3 span {
	font-size: 14px;
	color: #b3b5bd;
}
#buddy h3::after {
	content: "";
	display: block;
	width: 18px;
	height: 3px;
	background-color: #287ef0;
	margin-top: 10px;
}
/* 下方合作者 */
.buddys {
	height: 406px;
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	align-content: space-between;
}
.buddys div {
	display: flex;
	justify-content: center;
	align-items: center;
	width: 354px;
	height: 125px;
	background-color: #fff;
}
/* 右边列表 */
#tab {
	top: 450px;
	width: 1200px;
	text-align: right;
}
#tabList {
	display: flex;
	flex-direction: column;
	align-items: end;
	width: 100%;
	height: 100%;
}
#tabList li {
	box-sizing: border-box;
	padding-top: 9px;
	margin-bottom: 10px;
	text-align: center;
	width: 50px;
	height: 50px;
	background-color: #fff;
	border-radius: 50%;
	transition: all 0.5s;
}
.btt {
	background: url(../imgs/iocn/returntopicon.jpg) no-repeat;
	background-position: -49px -208px;
}
#tabList li:hover {
	background-color: #666666;
	color: #fff;
	cursor: pointer;
}
/* 尾部 */
footer {
	width: var(--totawidth);
	height: 328px;
}
/* 尾部上方列表 */
.text3 {
	width: 722px;
	height: 200px;
}
.text3 .f-list {
	width: 100%;
	height: 14px;
}
.text3 .f-list li {
	font-size: 14px;
}
/* 尾部上方列表标题 */
.title {
	margin-bottom: 38px;
}
/* 尾部上方列表信息  */
.b-msg {
	font-size: 14px;
	line-height: 25px;
	color: #d6cfcf;
}
/* 尾部微信 */
.weix {
	display: flex;
	flex-direction: column;
	align-items: end;
	width: 106px;
	height: 178px;
}
.weix p:nth-child(2) {
	color: #cad2de;
	margin: 19px 0;
}
/* 尾部下方注释 */
.annotation {
	margin-top: 93px;
	width: 100%;
	color: #e2ddda;
}
.annotation span {
	vertical-align: 5px;
}
